When reading album booklets, I often see different terms being used to indicate some sort of sample.
One thing I'm pretty sure about:
- A sample is a piece of a recording reused in another recording. It usually gives credit to both the authors of the work and the performers of the original recording.
- An interpolation is a replayed piece of a recording meant to sound exactly the same as the recording to avoid copyright clearances. It usually gives credit to the authors of the work but not to the performers of the original recording. In a sense, this could be considered as a (partial) cover version of a work.
But how do elements and portions fit the "sample" definition? Sometimes they only credit the authors of the work, other times they credit the original performers, which is pretty confusing.
Examples from discogs: